Solid Phase Bonding of High Carbon Manganese Steel Rails

Solid phase bonding is undoubtedly the first welding process to be used by man. The general phenomenon of this process is quite similar to the primitive method of forge welding and also to the Electric Resistance Butt Welding process. The Term "Pressure Welding" is often used as a synonym for solid phase bonding since almost all the solid state processes require pressure. The source of heating may be either gas mixture, electricity or open hearth fire.